400848240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128477}}^1$

素因数の和:128506

約数の個数: 80

約数和(自身を含む): 1338226848

約数和(自身を除く): 937378608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 128477, 256954, 385431, 513908, 642385, 770862, 1027816, 1284770, 1541724, 1670201, 1927155, 2055632, 2569540, 3083448, 3340402, 3854310, 5010603, 5139080, 6166896, 6680804, 7708620, 8351005, 10021206, 10278160, 13361608, 15417240, 16702010, 20042412, 25053015, 26723216, 30834480, 33404020, 40084824, 50106030, 66808040, 80169648, 100212060, 133616080, 200424120, 400848240]

約数ペア:

[(1, 400848240), (2, 200424120), (3, 133616080), (4, 100212060), (5, 80169648), (6, 66808040), (8, 50106030), (10, 40084824), (12, 33404020), (13, 30834480), (15, 26723216), (16, 25053015), (20, 20042412), (24, 16702010), (26, 15417240), (30, 13361608), (39, 10278160), (40, 10021206), (48, 8351005), (52, 7708620), (60, 6680804), (65, 6166896), (78, 5139080), (80, 5010603), (104, 3854310), (120, 3340402), (130, 3083448), (156, 2569540), (195, 2055632), (208, 1927155), (240, 1670201), (260, 1541724), (312, 1284770), (390, 1027816), (520, 770862), (624, 642385), (780, 513908), (1040, 385431), (1560, 256954), (3120, 128477)]