21438300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 69995520

約数和(自身を除く): 48557220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 25, 26, 30, 39, 46, 50, 52, 60, 65, 69, 75, 78, 92, 100, 115, 130, 138, 150, 156, 195, 230, 239, 260, 276, 299, 300, 325, 345, 390, 460, 478, 575, 598, 650, 690, 717, 780, 897, 956, 975, 1150, 1195, 1196, 1300, 1380, 1434, 1495, 1725, 1794, 1950, 2300, 2390, 2868, 2990, 3107, 3450, 3585, 3588, 3900, 4485, 4780, 5497, 5975, 5980, 6214, 6900, 7170, 7475, 8970, 9321, 10994, 11950, 12428, 14340, 14950, 15535, 16491, 17925, 17940, 18642, 21988, 22425, 23900, 27485, 29900, 31070, 32982, 35850, 37284, 44850, 46605, 54970, 62140, 65964, 71461, 71700, 77675, 82455, 89700, 93210, 109940, 137425, 142922, 155350, 164910, 186420, 214383, 233025, 274850, 285844, 310700, 329820, 357305, 412275, 428766, 466050, 549700, 714610, 824550, 857532, 932100, 1071915, 1429220, 1649100, 1786525, 2143830, 3573050, 4287660, 5359575, 7146100, 10719150, 21438300]

約数ペア:

[(1, 21438300), (2, 10719150), (3, 7146100), (4, 5359575), (5, 4287660), (6, 3573050), (10, 2143830), (12, 1786525), (13, 1649100), (15, 1429220), (20, 1071915), (23, 932100), (25, 857532), (26, 824550), (30, 714610), (39, 549700), (46, 466050), (50, 428766), (52, 412275), (60, 357305), (65, 329820), (69, 310700), (75, 285844), (78, 274850), (92, 233025), (100, 214383), (115, 186420), (130, 164910), (138, 155350), (150, 142922), (156, 137425), (195, 109940), (230, 93210), (239, 89700), (260, 82455), (276, 77675), (299, 71700), (300, 71461), (325, 65964), (345, 62140), (390, 54970), (460, 46605), (478, 44850), (575, 37284), (598, 35850), (650, 32982), (690, 31070), (717, 29900), (780, 27485), (897, 23900), (956, 22425), (975, 21988), (1150, 18642), (1195, 17940), (1196, 17925), (1300, 16491), (1380, 15535), (1434, 14950), (1495, 14340), (1725, 12428), (1794, 11950), (1950, 10994), (2300, 9321), (2390, 8970), (2868, 7475), (2990, 7170), (3107, 6900), (3450, 6214), (3585, 5980), (3588, 5975), (3900, 5497), (4485, 4780)]