20291217400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1613}}^1\times {\mathrm{2029}}^1$

素因数の和:3689

約数の個数: 96

約数和(自身を含む): 48753129600

約数和(自身を除く): 28461912200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 1613, 2029, 3100, 3226, 4058, 6200, 6452, 8065, 8116, 10145, 12904, 16130, 16232, 20290, 32260, 40325, 40580, 50003, 50725, 62899, 64520, 80650, 81160, 100006, 101450, 125798, 161300, 200012, 202900, 250015, 251596, 314495, 322600, 400024, 405800, 500030, 503192, 628990, 1000060, 1250075, 1257980, 1572475, 2000120, 2500150, 2515960, 3144950, 3272777, 5000300, 6289900, 6545554, 10000600, 12579800, 13091108, 16363885, 26182216, 32727770, 65455540, 81819425, 101456087, 130911080, 163638850, 202912174, 327277700, 405824348, 507280435, 654555400, 811648696, 1014560870, 2029121740, 2536402175, 4058243480, 5072804350, 10145608700, 20291217400]

約数ペア:

[(1, 20291217400), (2, 10145608700), (4, 5072804350), (5, 4058243480), (8, 2536402175), (10, 2029121740), (20, 1014560870), (25, 811648696), (31, 654555400), (40, 507280435), (50, 405824348), (62, 327277700), (100, 202912174), (124, 163638850), (155, 130911080), (200, 101456087), (248, 81819425), (310, 65455540), (620, 32727770), (775, 26182216), (1240, 16363885), (1550, 13091108), (1613, 12579800), (2029, 10000600), (3100, 6545554), (3226, 6289900), (4058, 5000300), (6200, 3272777), (6452, 3144950), (8065, 2515960), (8116, 2500150), (10145, 2000120), (12904, 1572475), (16130, 1257980), (16232, 1250075), (20290, 1000060), (32260, 628990), (40325, 503192), (40580, 500030), (50003, 405800), (50725, 400024), (62899, 322600), (64520, 314495), (80650, 251596), (81160, 250015), (100006, 202900), (101450, 200012), (125798, 161300)]