90231760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:173

約数の個数: 160

約数和(自身を含む): 241056000

約数和(自身を除く): 150824240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 29, 38, 40, 46, 58, 76, 80, 89, 92, 95, 115, 116, 145, 152, 178, 184, 190, 230, 232, 290, 304, 356, 368, 380, 437, 445, 460, 464, 551, 580, 667, 712, 760, 874, 890, 920, 1102, 1160, 1334, 1424, 1520, 1691, 1748, 1780, 1840, 2047, 2185, 2204, 2320, 2581, 2668, 2755, 3335, 3382, 3496, 3560, 4094, 4370, 4408, 5162, 5336, 5510, 6670, 6764, 6992, 7120, 8188, 8455, 8740, 8816, 10235, 10324, 10672, 11020, 12673, 12905, 13340, 13528, 16376, 16910, 17480, 20470, 20648, 22040, 25346, 25810, 26680, 27056, 32752, 33820, 34960, 38893, 40940, 41296, 44080, 49039, 50692, 51620, 53360, 59363, 63365, 67640, 77786, 81880, 98078, 101384, 103240, 118726, 126730, 135280, 155572, 163760, 194465, 196156, 202768, 206480, 237452, 245195, 253460, 296815, 311144, 388930, 392312, 474904, 490390, 506920, 593630, 622288, 777860, 784624, 949808, 980780, 1013840, 1127897, 1187260, 1555720, 1961560, 2255794, 2374520, 3111440, 3923120, 4511588, 4749040, 5639485, 9023176, 11278970, 18046352, 22557940, 45115880, 90231760]

約数ペア:

[(1, 90231760), (2, 45115880), (4, 22557940), (5, 18046352), (8, 11278970), (10, 9023176), (16, 5639485), (19, 4749040), (20, 4511588), (23, 3923120), (29, 3111440), (38, 2374520), (40, 2255794), (46, 1961560), (58, 1555720), (76, 1187260), (80, 1127897), (89, 1013840), (92, 980780), (95, 949808), (115, 784624), (116, 777860), (145, 622288), (152, 593630), (178, 506920), (184, 490390), (190, 474904), (230, 392312), (232, 388930), (290, 311144), (304, 296815), (356, 253460), (368, 245195), (380, 237452), (437, 206480), (445, 202768), (460, 196156), (464, 194465), (551, 163760), (580, 155572), (667, 135280), (712, 126730), (760, 118726), (874, 103240), (890, 101384), (920, 98078), (1102, 81880), (1160, 77786), (1334, 67640), (1424, 63365), (1520, 59363), (1691, 53360), (1748, 51620), (1780, 50692), (1840, 49039), (2047, 44080), (2185, 41296), (2204, 40940), (2320, 38893), (2581, 34960), (2668, 33820), (2755, 32752), (3335, 27056), (3382, 26680), (3496, 25810), (3560, 25346), (4094, 22040), (4370, 20648), (4408, 20470), (5162, 17480), (5336, 16910), (5510, 16376), (6670, 13528), (6764, 13340), (6992, 12905), (7120, 12673), (8188, 11020), (8455, 10672), (8740, 10324), (8816, 10235)]