19158880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:240

約数の個数: 96

約数和(自身を含む): 49871808

約数和(自身を除く): 30712928

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 65, 80, 104, 122, 130, 151, 160, 208, 244, 260, 302, 305, 416, 488, 520, 604, 610, 755, 793, 976, 1040, 1208, 1220, 1510, 1586, 1952, 1963, 2080, 2416, 2440, 3020, 3172, 3926, 3965, 4832, 4880, 6040, 6344, 7852, 7930, 9211, 9760, 9815, 12080, 12688, 15704, 15860, 18422, 19630, 24160, 25376, 31408, 31720, 36844, 39260, 46055, 62816, 63440, 73688, 78520, 92110, 119743, 126880, 147376, 157040, 184220, 239486, 294752, 314080, 368440, 478972, 598715, 736880, 957944, 1197430, 1473760, 1915888, 2394860, 3831776, 4789720, 9579440, 19158880]

約数ペア:

[(1, 19158880), (2, 9579440), (4, 4789720), (5, 3831776), (8, 2394860), (10, 1915888), (13, 1473760), (16, 1197430), (20, 957944), (26, 736880), (32, 598715), (40, 478972), (52, 368440), (61, 314080), (65, 294752), (80, 239486), (104, 184220), (122, 157040), (130, 147376), (151, 126880), (160, 119743), (208, 92110), (244, 78520), (260, 73688), (302, 63440), (305, 62816), (416, 46055), (488, 39260), (520, 36844), (604, 31720), (610, 31408), (755, 25376), (793, 24160), (976, 19630), (1040, 18422), (1208, 15860), (1220, 15704), (1510, 12688), (1586, 12080), (1952, 9815), (1963, 9760), (2080, 9211), (2416, 7930), (2440, 7852), (3020, 6344), (3172, 6040), (3926, 4880), (3965, 4832)]