20361420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:176

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45682740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 41, 45, 60, 62, 82, 89, 90, 93, 123, 124, 155, 164, 178, 180, 186, 205, 246, 267, 279, 310, 356, 369, 372, 410, 445, 465, 492, 534, 558, 615, 620, 738, 801, 820, 890, 930, 1068, 1116, 1230, 1271, 1335, 1395, 1476, 1602, 1780, 1845, 1860, 2460, 2542, 2670, 2759, 2790, 3204, 3649, 3690, 3813, 4005, 5084, 5340, 5518, 5580, 6355, 7298, 7380, 7626, 8010, 8277, 10947, 11036, 11439, 12710, 13795, 14596, 15252, 16020, 16554, 18245, 19065, 21894, 22878, 24831, 25420, 27590, 32841, 33108, 36490, 38130, 41385, 43788, 45756, 49662, 54735, 55180, 57195, 65682, 72980, 76260, 82770, 99324, 109470, 113119, 114390, 124155, 131364, 164205, 165540, 218940, 226238, 228780, 248310, 328410, 339357, 452476, 496620, 565595, 656820, 678714, 1018071, 1131190, 1357428, 1696785, 2036142, 2262380, 3393570, 4072284, 5090355, 6787140, 10180710, 20361420]

約数ペア:

[(1, 20361420), (2, 10180710), (3, 6787140), (4, 5090355), (5, 4072284), (6, 3393570), (9, 2262380), (10, 2036142), (12, 1696785), (15, 1357428), (18, 1131190), (20, 1018071), (30, 678714), (31, 656820), (36, 565595), (41, 496620), (45, 452476), (60, 339357), (62, 328410), (82, 248310), (89, 228780), (90, 226238), (93, 218940), (123, 165540), (124, 164205), (155, 131364), (164, 124155), (178, 114390), (180, 113119), (186, 109470), (205, 99324), (246, 82770), (267, 76260), (279, 72980), (310, 65682), (356, 57195), (369, 55180), (372, 54735), (410, 49662), (445, 45756), (465, 43788), (492, 41385), (534, 38130), (558, 36490), (615, 33108), (620, 32841), (738, 27590), (801, 25420), (820, 24831), (890, 22878), (930, 21894), (1068, 19065), (1116, 18245), (1230, 16554), (1271, 16020), (1335, 15252), (1395, 14596), (1476, 13795), (1602, 12710), (1780, 11439), (1845, 11036), (1860, 10947), (2460, 8277), (2542, 8010), (2670, 7626), (2759, 7380), (2790, 7298), (3204, 6355), (3649, 5580), (3690, 5518), (3813, 5340), (4005, 5084)]