29961980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{599}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 65620800

約数和(自身を除く): 35658820

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 410, 599, 610, 820, 1198, 1220, 2396, 2501, 2995, 5002, 5990, 10004, 11980, 12505, 24559, 25010, 36539, 49118, 50020, 73078, 98236, 122795, 146156, 182695, 245590, 365390, 491180, 730780, 1498099, 2996198, 5992396, 7490495, 14980990, 29961980]

約数ペア:

[(1, 29961980), (2, 14980990), (4, 7490495), (5, 5992396), (10, 2996198), (20, 1498099), (41, 730780), (61, 491180), (82, 365390), (122, 245590), (164, 182695), (205, 146156), (244, 122795), (305, 98236), (410, 73078), (599, 50020), (610, 49118), (820, 36539), (1198, 25010), (1220, 24559), (2396, 12505), (2501, 11980), (2995, 10004), (5002, 5990)]