28152460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1249}}^1$

素因数の和:1295

約数の個数: 72

約数和(自身を含む): 71820000

約数和(自身を除く): 43667540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1249, 1610, 2254, 2498, 3220, 4508, 4996, 5635, 6245, 8743, 11270, 12490, 17486, 22540, 24980, 28727, 34972, 43715, 57454, 61201, 87430, 114908, 122402, 143635, 174860, 201089, 244804, 287270, 306005, 402178, 574540, 612010, 804356, 1005445, 1224020, 1407623, 2010890, 2815246, 4021780, 5630492, 7038115, 14076230, 28152460]

約数ペア:

[(1, 28152460), (2, 14076230), (4, 7038115), (5, 5630492), (7, 4021780), (10, 2815246), (14, 2010890), (20, 1407623), (23, 1224020), (28, 1005445), (35, 804356), (46, 612010), (49, 574540), (70, 402178), (92, 306005), (98, 287270), (115, 244804), (140, 201089), (161, 174860), (196, 143635), (230, 122402), (245, 114908), (322, 87430), (460, 61201), (490, 57454), (644, 43715), (805, 34972), (980, 28727), (1127, 24980), (1249, 22540), (1610, 17486), (2254, 12490), (2498, 11270), (3220, 8743), (4508, 6245), (4996, 5635)]