19869720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 65802240

約数和(自身を除く): 45932520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 47, 52, 60, 65, 78, 94, 104, 120, 130, 141, 156, 188, 195, 235, 260, 271, 282, 312, 376, 390, 470, 520, 542, 564, 611, 705, 780, 813, 940, 1084, 1128, 1222, 1355, 1410, 1560, 1626, 1833, 1880, 2168, 2444, 2710, 2820, 3055, 3252, 3523, 3666, 4065, 4888, 5420, 5640, 6110, 6504, 7046, 7332, 8130, 9165, 10569, 10840, 12220, 12737, 14092, 14664, 16260, 17615, 18330, 21138, 24440, 25474, 28184, 32520, 35230, 36660, 38211, 42276, 50948, 52845, 63685, 70460, 73320, 76422, 84552, 101896, 105690, 127370, 140920, 152844, 165581, 191055, 211380, 254740, 305688, 331162, 382110, 422760, 496743, 509480, 662324, 764220, 827905, 993486, 1324648, 1528440, 1655810, 1986972, 2483715, 3311620, 3973944, 4967430, 6623240, 9934860, 19869720]

約数ペア:

[(1, 19869720), (2, 9934860), (3, 6623240), (4, 4967430), (5, 3973944), (6, 3311620), (8, 2483715), (10, 1986972), (12, 1655810), (13, 1528440), (15, 1324648), (20, 993486), (24, 827905), (26, 764220), (30, 662324), (39, 509480), (40, 496743), (47, 422760), (52, 382110), (60, 331162), (65, 305688), (78, 254740), (94, 211380), (104, 191055), (120, 165581), (130, 152844), (141, 140920), (156, 127370), (188, 105690), (195, 101896), (235, 84552), (260, 76422), (271, 73320), (282, 70460), (312, 63685), (376, 52845), (390, 50948), (470, 42276), (520, 38211), (542, 36660), (564, 35230), (611, 32520), (705, 28184), (780, 25474), (813, 24440), (940, 21138), (1084, 18330), (1128, 17615), (1222, 16260), (1355, 14664), (1410, 14092), (1560, 12737), (1626, 12220), (1833, 10840), (1880, 10569), (2168, 9165), (2444, 8130), (2710, 7332), (2820, 7046), (3055, 6504), (3252, 6110), (3523, 5640), (3666, 5420), (4065, 4888)]