20778390

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1877}}^1$

素因数の和:1934

約数の個数: 64

約数和(自身を含む): 56790720

約数和(自身を除く): 36012330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 41, 45, 54, 82, 90, 123, 135, 205, 246, 270, 369, 410, 615, 738, 1107, 1230, 1845, 1877, 2214, 3690, 3754, 5535, 5631, 9385, 11070, 11262, 16893, 18770, 28155, 33786, 50679, 56310, 76957, 84465, 101358, 153914, 168930, 230871, 253395, 384785, 461742, 506790, 692613, 769570, 1154355, 1385226, 2077839, 2308710, 3463065, 4155678, 6926130, 10389195, 20778390]

約数ペア:

[(1, 20778390), (2, 10389195), (3, 6926130), (5, 4155678), (6, 3463065), (9, 2308710), (10, 2077839), (15, 1385226), (18, 1154355), (27, 769570), (30, 692613), (41, 506790), (45, 461742), (54, 384785), (82, 253395), (90, 230871), (123, 168930), (135, 153914), (205, 101358), (246, 84465), (270, 76957), (369, 56310), (410, 50679), (615, 33786), (738, 28155), (1107, 18770), (1230, 16893), (1845, 11262), (1877, 11070), (2214, 9385), (3690, 5631), (3754, 5535)]