51081660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1$

素因数の和:664

約数の個数: 144

約数和(自身を含む): 179891712

約数和(自身を除く): 128810052

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 71, 84, 90, 105, 126, 140, 142, 180, 210, 213, 252, 284, 315, 355, 420, 426, 497, 571, 630, 639, 710, 852, 994, 1065, 1142, 1260, 1278, 1420, 1491, 1713, 1988, 2130, 2284, 2485, 2556, 2855, 2982, 3195, 3426, 3997, 4260, 4473, 4970, 5139, 5710, 5964, 6390, 6852, 7455, 7994, 8565, 8946, 9940, 10278, 11420, 11991, 12780, 14910, 15988, 17130, 17892, 19985, 20556, 22365, 23982, 25695, 29820, 34260, 35973, 39970, 40541, 44730, 47964, 51390, 59955, 71946, 79940, 81082, 89460, 102780, 119910, 121623, 143892, 162164, 179865, 202705, 239820, 243246, 283787, 359730, 364869, 405410, 486492, 567574, 608115, 719460, 729738, 810820, 851361, 1135148, 1216230, 1418935, 1459476, 1702722, 1824345, 2432460, 2554083, 2837870, 3405444, 3648690, 4256805, 5108166, 5675740, 7297380, 8513610, 10216332, 12770415, 17027220, 25540830, 51081660]

約数ペア:

[(1, 51081660), (2, 25540830), (3, 17027220), (4, 12770415), (5, 10216332), (6, 8513610), (7, 7297380), (9, 5675740), (10, 5108166), (12, 4256805), (14, 3648690), (15, 3405444), (18, 2837870), (20, 2554083), (21, 2432460), (28, 1824345), (30, 1702722), (35, 1459476), (36, 1418935), (42, 1216230), (45, 1135148), (60, 851361), (63, 810820), (70, 729738), (71, 719460), (84, 608115), (90, 567574), (105, 486492), (126, 405410), (140, 364869), (142, 359730), (180, 283787), (210, 243246), (213, 239820), (252, 202705), (284, 179865), (315, 162164), (355, 143892), (420, 121623), (426, 119910), (497, 102780), (571, 89460), (630, 81082), (639, 79940), (710, 71946), (852, 59955), (994, 51390), (1065, 47964), (1142, 44730), (1260, 40541), (1278, 39970), (1420, 35973), (1491, 34260), (1713, 29820), (1988, 25695), (2130, 23982), (2284, 22365), (2485, 20556), (2556, 19985), (2855, 17892), (2982, 17130), (3195, 15988), (3426, 14910), (3997, 12780), (4260, 11991), (4473, 11420), (4970, 10278), (5139, 9940), (5710, 8946), (5964, 8565), (6390, 7994), (6852, 7455)]