51247980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:568

約数の個数: 144

約数和(自身を含む): 180048960

約数和(自身を除く): 128800980

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, 84, 89, 90, 105, 126, 140, 178, 180, 210, 252, 267, 315, 356, 420, 445, 457, 534, 623, 630, 801, 890, 914, 1068, 1246, 1260, 1335, 1371, 1602, 1780, 1828, 1869, 2285, 2492, 2670, 2742, 3115, 3199, 3204, 3738, 4005, 4113, 4570, 5340, 5484, 5607, 6230, 6398, 6855, 7476, 8010, 8226, 9140, 9345, 9597, 11214, 12460, 12796, 13710, 15995, 16020, 16452, 18690, 19194, 20565, 22428, 27420, 28035, 28791, 31990, 37380, 38388, 40673, 41130, 47985, 56070, 57582, 63980, 81346, 82260, 95970, 112140, 115164, 122019, 143955, 162692, 191940, 203365, 244038, 284711, 287910, 366057, 406730, 488076, 569422, 575820, 610095, 732114, 813460, 854133, 1138844, 1220190, 1423555, 1464228, 1708266, 1830285, 2440380, 2562399, 2847110, 3416532, 3660570, 4270665, 5124798, 5694220, 7321140, 8541330, 10249596, 12811995, 17082660, 25623990, 51247980]

約数ペア:

[(1, 51247980), (2, 25623990), (3, 17082660), (4, 12811995), (5, 10249596), (6, 8541330), (7, 7321140), (9, 5694220), (10, 5124798), (12, 4270665), (14, 3660570), (15, 3416532), (18, 2847110), (20, 2562399), (21, 2440380), (28, 1830285), (30, 1708266), (35, 1464228), (36, 1423555), (42, 1220190), (45, 1138844), (60, 854133), (63, 813460), (70, 732114), (84, 610095), (89, 575820), (90, 569422), (105, 488076), (126, 406730), (140, 366057), (178, 287910), (180, 284711), (210, 244038), (252, 203365), (267, 191940), (315, 162692), (356, 143955), (420, 122019), (445, 115164), (457, 112140), (534, 95970), (623, 82260), (630, 81346), (801, 63980), (890, 57582), (914, 56070), (1068, 47985), (1246, 41130), (1260, 40673), (1335, 38388), (1371, 37380), (1602, 31990), (1780, 28791), (1828, 28035), (1869, 27420), (2285, 22428), (2492, 20565), (2670, 19194), (2742, 18690), (3115, 16452), (3199, 16020), (3204, 15995), (3738, 13710), (4005, 12796), (4113, 12460), (4570, 11214), (5340, 9597), (5484, 9345), (5607, 9140), (6230, 8226), (6398, 8010), (6855, 7476)]