20574420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{877}}^1$

素因数の和:929

約数の個数: 96

約数和(自身を含む): 63721728

約数和(自身を除く): 43147308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 34, 46, 51, 60, 68, 69, 85, 92, 102, 115, 138, 170, 204, 230, 255, 276, 340, 345, 391, 460, 510, 690, 782, 877, 1020, 1173, 1380, 1564, 1754, 1955, 2346, 2631, 3508, 3910, 4385, 4692, 5262, 5865, 7820, 8770, 10524, 11730, 13155, 14909, 17540, 20171, 23460, 26310, 29818, 40342, 44727, 52620, 59636, 60513, 74545, 80684, 89454, 100855, 121026, 149090, 178908, 201710, 223635, 242052, 298180, 302565, 342907, 403420, 447270, 605130, 685814, 894540, 1028721, 1210260, 1371628, 1714535, 2057442, 3429070, 4114884, 5143605, 6858140, 10287210, 20574420]

約数ペア:

[(1, 20574420), (2, 10287210), (3, 6858140), (4, 5143605), (5, 4114884), (6, 3429070), (10, 2057442), (12, 1714535), (15, 1371628), (17, 1210260), (20, 1028721), (23, 894540), (30, 685814), (34, 605130), (46, 447270), (51, 403420), (60, 342907), (68, 302565), (69, 298180), (85, 242052), (92, 223635), (102, 201710), (115, 178908), (138, 149090), (170, 121026), (204, 100855), (230, 89454), (255, 80684), (276, 74545), (340, 60513), (345, 59636), (391, 52620), (460, 44727), (510, 40342), (690, 29818), (782, 26310), (877, 23460), (1020, 20171), (1173, 17540), (1380, 14909), (1564, 13155), (1754, 11730), (1955, 10524), (2346, 8770), (2631, 7820), (3508, 5865), (3910, 5262), (4385, 4692)]