15474940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1123}}^1$

素因数の和:1198

約数の個数: 48

約数和(自身を含む): 35689248

約数和(自身を除く): 20214308

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1123, 1378, 2246, 2756, 3445, 4492, 5615, 6890, 11230, 13780, 14599, 22460, 29198, 58396, 59519, 72995, 119038, 145990, 238076, 291980, 297595, 595190, 773747, 1190380, 1547494, 3094988, 3868735, 7737470, 15474940]

約数ペア:

[(1, 15474940), (2, 7737470), (4, 3868735), (5, 3094988), (10, 1547494), (13, 1190380), (20, 773747), (26, 595190), (52, 297595), (53, 291980), (65, 238076), (106, 145990), (130, 119038), (212, 72995), (260, 59519), (265, 58396), (530, 29198), (689, 22460), (1060, 14599), (1123, 13780), (1378, 11230), (2246, 6890), (2756, 5615), (3445, 4492)]