1221220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:101

約数の個数: 96

約数和(自身を含む): 3499776

約数和(自身を除く): 2278556

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 61, 65, 70, 77, 91, 110, 122, 130, 140, 143, 154, 182, 220, 244, 260, 286, 305, 308, 364, 385, 427, 455, 572, 610, 671, 715, 770, 793, 854, 910, 1001, 1220, 1342, 1430, 1540, 1586, 1708, 1820, 2002, 2135, 2684, 2860, 3172, 3355, 3965, 4004, 4270, 4697, 5005, 5551, 6710, 7930, 8540, 8723, 9394, 10010, 11102, 13420, 15860, 17446, 18788, 20020, 22204, 23485, 27755, 34892, 43615, 46970, 55510, 61061, 87230, 93940, 111020, 122122, 174460, 244244, 305305, 610610, 1221220]

約数ペア:

[(1, 1221220), (2, 610610), (4, 305305), (5, 244244), (7, 174460), (10, 122122), (11, 111020), (13, 93940), (14, 87230), (20, 61061), (22, 55510), (26, 46970), (28, 43615), (35, 34892), (44, 27755), (52, 23485), (55, 22204), (61, 20020), (65, 18788), (70, 17446), (77, 15860), (91, 13420), (110, 11102), (122, 10010), (130, 9394), (140, 8723), (143, 8540), (154, 7930), (182, 6710), (220, 5551), (244, 5005), (260, 4697), (286, 4270), (305, 4004), (308, 3965), (364, 3355), (385, 3172), (427, 2860), (455, 2684), (572, 2135), (610, 2002), (671, 1820), (715, 1708), (770, 1586), (793, 1540), (854, 1430), (910, 1342), (1001, 1220)]