28587420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{659}}^1$

素因数の和:915

約数の個数: 72

約数和(自身を含む): 87207120

約数和(自身を除く): 58619700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 241, 482, 659, 723, 964, 1205, 1318, 1446, 1977, 2169, 2410, 2636, 2892, 3295, 3615, 3954, 4338, 4820, 5931, 6590, 7230, 7908, 8676, 9885, 10845, 11862, 13180, 14460, 19770, 21690, 23724, 29655, 39540, 43380, 59310, 118620, 158819, 317638, 476457, 635276, 794095, 952914, 1429371, 1588190, 1905828, 2382285, 2858742, 3176380, 4764570, 5717484, 7146855, 9529140, 14293710, 28587420]

約数ペア:

[(1, 28587420), (2, 14293710), (3, 9529140), (4, 7146855), (5, 5717484), (6, 4764570), (9, 3176380), (10, 2858742), (12, 2382285), (15, 1905828), (18, 1588190), (20, 1429371), (30, 952914), (36, 794095), (45, 635276), (60, 476457), (90, 317638), (180, 158819), (241, 118620), (482, 59310), (659, 43380), (723, 39540), (964, 29655), (1205, 23724), (1318, 21690), (1446, 19770), (1977, 14460), (2169, 13180), (2410, 11862), (2636, 10845), (2892, 9885), (3295, 8676), (3615, 7908), (3954, 7230), (4338, 6590), (4820, 5931)]