25391540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 59415552

約数和(自身を除く): 34024012

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 191, 230, 289, 340, 382, 391, 460, 578, 764, 782, 955, 1156, 1445, 1564, 1910, 1955, 2890, 3247, 3820, 3910, 4393, 5780, 6494, 6647, 7820, 8786, 12988, 13294, 16235, 17572, 21965, 26588, 32470, 33235, 43930, 55199, 64940, 66470, 74681, 87860, 110398, 132940, 149362, 220796, 275995, 298724, 373405, 551990, 746810, 1103980, 1269577, 1493620, 2539154, 5078308, 6347885, 12695770, 25391540]

約数ペア:

[(1, 25391540), (2, 12695770), (4, 6347885), (5, 5078308), (10, 2539154), (17, 1493620), (20, 1269577), (23, 1103980), (34, 746810), (46, 551990), (68, 373405), (85, 298724), (92, 275995), (115, 220796), (170, 149362), (191, 132940), (230, 110398), (289, 87860), (340, 74681), (382, 66470), (391, 64940), (460, 55199), (578, 43930), (764, 33235), (782, 32470), (955, 26588), (1156, 21965), (1445, 17572), (1564, 16235), (1910, 13294), (1955, 12988), (2890, 8786), (3247, 7820), (3820, 6647), (3910, 6494), (4393, 5780)]