615321460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:506

約数の個数: 144

約数和(自身を含む): 1559658240

約数和(自身を除く): 944336780

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 26, 34, 38, 52, 65, 68, 76, 85, 95, 130, 170, 190, 221, 247, 260, 289, 323, 340, 380, 431, 442, 494, 578, 646, 862, 884, 988, 1105, 1156, 1235, 1292, 1445, 1615, 1724, 2155, 2210, 2470, 2890, 3230, 3757, 4199, 4310, 4420, 4940, 5491, 5603, 5780, 6460, 7327, 7514, 8189, 8398, 8620, 10982, 11206, 14654, 15028, 16378, 16796, 18785, 20995, 21964, 22412, 27455, 28015, 29308, 32756, 36635, 37570, 40945, 41990, 54910, 56030, 71383, 73270, 75140, 81890, 83980, 95251, 106457, 109820, 112060, 124559, 139213, 142766, 146540, 163780, 190502, 212914, 249118, 278426, 285532, 356915, 381004, 425828, 476255, 498236, 532285, 556852, 622795, 696065, 713830, 952510, 1064570, 1245590, 1392130, 1427660, 1619267, 1809769, 1905020, 2129140, 2366621, 2491180, 2784260, 3238534, 3619538, 4733242, 6477068, 7239076, 8096335, 9048845, 9466484, 11833105, 16192670, 18097690, 23666210, 30766073, 32385340, 36195380, 47332420, 61532146, 123064292, 153830365, 307660730, 615321460]

約数ペア:

[(1, 615321460), (2, 307660730), (4, 153830365), (5, 123064292), (10, 61532146), (13, 47332420), (17, 36195380), (19, 32385340), (20, 30766073), (26, 23666210), (34, 18097690), (38, 16192670), (52, 11833105), (65, 9466484), (68, 9048845), (76, 8096335), (85, 7239076), (95, 6477068), (130, 4733242), (170, 3619538), (190, 3238534), (221, 2784260), (247, 2491180), (260, 2366621), (289, 2129140), (323, 1905020), (340, 1809769), (380, 1619267), (431, 1427660), (442, 1392130), (494, 1245590), (578, 1064570), (646, 952510), (862, 713830), (884, 696065), (988, 622795), (1105, 556852), (1156, 532285), (1235, 498236), (1292, 476255), (1445, 425828), (1615, 381004), (1724, 356915), (2155, 285532), (2210, 278426), (2470, 249118), (2890, 212914), (3230, 190502), (3757, 163780), (4199, 146540), (4310, 142766), (4420, 139213), (4940, 124559), (5491, 112060), (5603, 109820), (5780, 106457), (6460, 95251), (7327, 83980), (7514, 81890), (8189, 75140), (8398, 73270), (8620, 71383), (10982, 56030), (11206, 54910), (14654, 41990), (15028, 40945), (16378, 37570), (16796, 36635), (18785, 32756), (20995, 29308), (21964, 28015), (22412, 27455)]