81861420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 237758976

約数和(自身を除く): 155897556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 107, 123, 164, 205, 214, 246, 311, 321, 410, 428, 492, 535, 615, 622, 642, 820, 933, 1070, 1230, 1244, 1284, 1555, 1605, 1866, 2140, 2460, 3110, 3210, 3732, 4387, 4665, 6220, 6420, 8774, 9330, 12751, 13161, 17548, 18660, 21935, 25502, 26322, 33277, 38253, 43870, 51004, 52644, 63755, 65805, 66554, 76506, 87740, 99831, 127510, 131610, 133108, 153012, 166385, 191265, 199662, 255020, 263220, 332770, 382530, 399324, 499155, 665540, 765060, 998310, 1364357, 1996620, 2728714, 4093071, 5457428, 6821785, 8186142, 13643570, 16372284, 20465355, 27287140, 40930710, 81861420]

約数ペア:

[(1, 81861420), (2, 40930710), (3, 27287140), (4, 20465355), (5, 16372284), (6, 13643570), (10, 8186142), (12, 6821785), (15, 5457428), (20, 4093071), (30, 2728714), (41, 1996620), (60, 1364357), (82, 998310), (107, 765060), (123, 665540), (164, 499155), (205, 399324), (214, 382530), (246, 332770), (311, 263220), (321, 255020), (410, 199662), (428, 191265), (492, 166385), (535, 153012), (615, 133108), (622, 131610), (642, 127510), (820, 99831), (933, 87740), (1070, 76506), (1230, 66554), (1244, 65805), (1284, 63755), (1555, 52644), (1605, 51004), (1866, 43870), (2140, 38253), (2460, 33277), (3110, 26322), (3210, 25502), (3732, 21935), (4387, 18660), (4665, 17548), (6220, 13161), (6420, 12751), (8774, 9330)]