20408971920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{294247}}^1$

素因数の和:294297

約数の個数: 120

約数和(自身を含む): 67208597184

約数和(自身を除く): 46799625264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 289, 340, 408, 510, 578, 680, 816, 867, 1020, 1156, 1360, 1445, 1734, 2040, 2312, 2890, 3468, 4080, 4335, 4624, 5780, 6936, 8670, 11560, 13872, 17340, 23120, 34680, 69360, 294247, 588494, 882741, 1176988, 1471235, 1765482, 2353976, 2942470, 3530964, 4413705, 4707952, 5002199, 5884940, 7061928, 8827410, 10004398, 11769880, 14123856, 15006597, 17654820, 20008796, 23539760, 25010995, 30013194, 35309640, 40017592, 50021990, 60026388, 70619280, 75032985, 80035184, 85037383, 100043980, 120052776, 150065970, 170074766, 200087960, 240105552, 255112149, 300131940, 340149532, 400175920, 425186915, 510224298, 600263880, 680299064, 850373830, 1020448596, 1200527760, 1275560745, 1360598128, 1700747660, 2040897192, 2551121490, 3401495320, 4081794384, 5102242980, 6802990640, 10204485960, 20408971920]

約数ペア:

[(1, 20408971920), (2, 10204485960), (3, 6802990640), (4, 5102242980), (5, 4081794384), (6, 3401495320), (8, 2551121490), (10, 2040897192), (12, 1700747660), (15, 1360598128), (16, 1275560745), (17, 1200527760), (20, 1020448596), (24, 850373830), (30, 680299064), (34, 600263880), (40, 510224298), (48, 425186915), (51, 400175920), (60, 340149532), (68, 300131940), (80, 255112149), (85, 240105552), (102, 200087960), (120, 170074766), (136, 150065970), (170, 120052776), (204, 100043980), (240, 85037383), (255, 80035184), (272, 75032985), (289, 70619280), (340, 60026388), (408, 50021990), (510, 40017592), (578, 35309640), (680, 30013194), (816, 25010995), (867, 23539760), (1020, 20008796), (1156, 17654820), (1360, 15006597), (1445, 14123856), (1734, 11769880), (2040, 10004398), (2312, 8827410), (2890, 7061928), (3468, 5884940), (4080, 5002199), (4335, 4707952), (4624, 4413705), (5780, 3530964), (6936, 2942470), (8670, 2353976), (11560, 1765482), (13872, 1471235), (17340, 1176988), (23120, 882741), (34680, 588494), (69360, 294247)]