25245680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1026

約数の個数: 80

約数和(自身を含む): 65486880

約数和(自身を除く): 40241200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 977, 1292, 1360, 1520, 1615, 1954, 2584, 3230, 3908, 4885, 5168, 6460, 7816, 9770, 12920, 15632, 16609, 18563, 19540, 25840, 33218, 37126, 39080, 66436, 74252, 78160, 83045, 92815, 132872, 148504, 166090, 185630, 265744, 297008, 315571, 332180, 371260, 631142, 664360, 742520, 1262284, 1328720, 1485040, 1577855, 2524568, 3155710, 5049136, 6311420, 12622840, 25245680]

約数ペア:

[(1, 25245680), (2, 12622840), (4, 6311420), (5, 5049136), (8, 3155710), (10, 2524568), (16, 1577855), (17, 1485040), (19, 1328720), (20, 1262284), (34, 742520), (38, 664360), (40, 631142), (68, 371260), (76, 332180), (80, 315571), (85, 297008), (95, 265744), (136, 185630), (152, 166090), (170, 148504), (190, 132872), (272, 92815), (304, 83045), (323, 78160), (340, 74252), (380, 66436), (646, 39080), (680, 37126), (760, 33218), (977, 25840), (1292, 19540), (1360, 18563), (1520, 16609), (1615, 15632), (1954, 12920), (2584, 9770), (3230, 7816), (3908, 6460), (4885, 5168)]