20011380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{853}}^1$

素因数の和:905

約数の個数: 96

約数和(自身を含む): 61979904

約数和(自身を除く): 41968524

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, 853, 1020, 1173, 1380, 1564, 1706, 1955, 2346, 2559, 3412, 3910, 4265, 4692, 5118, 5865, 7820, 8530, 10236, 11730, 12795, 14501, 17060, 19619, 23460, 25590, 29002, 39238, 43503, 51180, 58004, 58857, 72505, 78476, 87006, 98095, 117714, 145010, 174012, 196190, 217515, 235428, 290020, 294285, 333523, 392380, 435030, 588570, 667046, 870060, 1000569, 1177140, 1334092, 1667615, 2001138, 3335230, 4002276, 5002845, 6670460, 10005690, 20011380]

約数ペア:

[(1, 20011380), (2, 10005690), (3, 6670460), (4, 5002845), (5, 4002276), (6, 3335230), (10, 2001138), (12, 1667615), (15, 1334092), (17, 1177140), (20, 1000569), (23, 870060), (30, 667046), (34, 588570), (46, 435030), (51, 392380), (60, 333523), (68, 294285), (69, 290020), (85, 235428), (92, 217515), (102, 196190), (115, 174012), (138, 145010), (170, 117714), (204, 98095), (230, 87006), (255, 78476), (276, 72505), (340, 58857), (345, 58004), (391, 51180), (460, 43503), (510, 39238), (690, 29002), (782, 25590), (853, 23460), (1020, 19619), (1173, 17060), (1380, 14501), (1564, 12795), (1706, 11730), (1955, 10236), (2346, 8530), (2559, 7820), (3412, 5865), (3910, 5118), (4265, 4692)]