397887840

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{5639}}^1$

素因数の和:5674

約数の個数: 216

約数和(自身を含む): 1579752720

約数和(自身を除く): 1181864880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 336, 360, 392, 420, 441, 480, 490, 504, 560, 588, 630, 672, 720, 735, 784, 840, 882, 980, 1008, 1120, 1176, 1260, 1440, 1470, 1568, 1680, 1764, 1960, 2016, 2205, 2352, 2520, 2940, 3360, 3528, 3920, 4410, 4704, 5040, 5639, 5880, 7056, 7840, 8820, 10080, 11278, 11760, 14112, 16917, 17640, 22556, 23520, 28195, 33834, 35280, 39473, 45112, 50751, 56390, 67668, 70560, 78946, 84585, 90224, 101502, 112780, 118419, 135336, 157892, 169170, 180448, 197365, 203004, 225560, 236838, 253755, 270672, 276311, 315784, 338340, 355257, 394730, 406008, 451120, 473676, 507510, 541344, 552622, 592095, 631568, 676680, 710514, 789460, 812016, 828933, 902240, 947352, 1015020, 1105244, 1184190, 1263136, 1353360, 1381555, 1421028, 1578920, 1624032, 1657866, 1776285, 1894704, 2030040, 2210488, 2368380, 2486799, 2706720, 2763110, 2842056, 3157840, 3315732, 3552570, 3789408, 4060080, 4144665, 4420976, 4736760, 4973598, 5526220, 5684112, 6315680, 6631464, 7105140, 8120160, 8289330, 8841952, 9473520, 9947196, 11052440, 11368224, 12433995, 13262928, 14210280, 16578660, 18947040, 19894392, 22104880, 24867990, 26525856, 28420560, 33157320, 39788784, 44209760, 49735980, 56841120, 66314640, 79577568, 99471960, 132629280, 198943920, 397887840]

約数ペア:

[(1, 397887840), (2, 198943920), (3, 132629280), (4, 99471960), (5, 79577568), (6, 66314640), (7, 56841120), (8, 49735980), (9, 44209760), (10, 39788784), (12, 33157320), (14, 28420560), (15, 26525856), (16, 24867990), (18, 22104880), (20, 19894392), (21, 18947040), (24, 16578660), (28, 14210280), (30, 13262928), (32, 12433995), (35, 11368224), (36, 11052440), (40, 9947196), (42, 9473520), (45, 8841952), (48, 8289330), (49, 8120160), (56, 7105140), (60, 6631464), (63, 6315680), (70, 5684112), (72, 5526220), (80, 4973598), (84, 4736760), (90, 4420976), (96, 4144665), (98, 4060080), (105, 3789408), (112, 3552570), (120, 3315732), (126, 3157840), (140, 2842056), (144, 2763110), (147, 2706720), (160, 2486799), (168, 2368380), (180, 2210488), (196, 2030040), (210, 1894704), (224, 1776285), (240, 1657866), (245, 1624032), (252, 1578920), (280, 1421028), (288, 1381555), (294, 1353360), (315, 1263136), (336, 1184190), (360, 1105244), (392, 1015020), (420, 947352), (441, 902240), (480, 828933), (490, 812016), (504, 789460), (560, 710514), (588, 676680), (630, 631568), (672, 592095), (720, 552622), (735, 541344), (784, 507510), (840, 473676), (882, 451120), (980, 406008), (1008, 394730), (1120, 355257), (1176, 338340), (1260, 315784), (1440, 276311), (1470, 270672), (1568, 253755), (1680, 236838), (1764, 225560), (1960, 203004), (2016, 197365), (2205, 180448), (2352, 169170), (2520, 157892), (2940, 135336), (3360, 118419), (3528, 112780), (3920, 101502), (4410, 90224), (4704, 84585), (5040, 78946), (5639, 70560), (5880, 67668), (7056, 56390), (7840, 50751), (8820, 45112), (10080, 39473), (11278, 35280), (11760, 33834), (14112, 28195), (16917, 23520), (17640, 22556)]