20245980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{863}}^1$

素因数の和:915

約数の個数: 96

約数和(自身を含む): 62705664

約数和(自身を除く): 42459684

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, 863, 1020, 1173, 1380, 1564, 1726, 1955, 2346, 2589, 3452, 3910, 4315, 4692, 5178, 5865, 7820, 8630, 10356, 11730, 12945, 14671, 17260, 19849, 23460, 25890, 29342, 39698, 44013, 51780, 58684, 59547, 73355, 79396, 88026, 99245, 119094, 146710, 176052, 198490, 220065, 238188, 293420, 297735, 337433, 396980, 440130, 595470, 674866, 880260, 1012299, 1190940, 1349732, 1687165, 2024598, 3374330, 4049196, 5061495, 6748660, 10122990, 20245980]

約数ペア:

[(1, 20245980), (2, 10122990), (3, 6748660), (4, 5061495), (5, 4049196), (6, 3374330), (10, 2024598), (12, 1687165), (15, 1349732), (17, 1190940), (20, 1012299), (23, 880260), (30, 674866), (34, 595470), (46, 440130), (51, 396980), (60, 337433), (68, 297735), (69, 293420), (85, 238188), (92, 220065), (102, 198490), (115, 176052), (138, 146710), (170, 119094), (204, 99245), (230, 88026), (255, 79396), (276, 73355), (340, 59547), (345, 58684), (391, 51780), (460, 44013), (510, 39698), (690, 29342), (782, 25890), (863, 23460), (1020, 19849), (1173, 17260), (1380, 14671), (1564, 12945), (1726, 11730), (1955, 10356), (2346, 8630), (2589, 7820), (3452, 5865), (3910, 5178), (4315, 4692)]