39905820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 127370880

約数和(自身を除く): 87465060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 53, 60, 89, 90, 94, 106, 141, 159, 178, 180, 188, 212, 235, 265, 267, 282, 318, 356, 423, 445, 470, 477, 530, 534, 564, 636, 705, 795, 801, 846, 890, 940, 954, 1060, 1068, 1335, 1410, 1590, 1602, 1692, 1780, 1908, 2115, 2385, 2491, 2670, 2820, 3180, 3204, 4005, 4183, 4230, 4717, 4770, 4982, 5340, 7473, 8010, 8366, 8460, 9434, 9540, 9964, 12455, 12549, 14151, 14946, 16020, 16732, 18868, 20915, 22419, 23585, 24910, 25098, 28302, 29892, 37365, 37647, 41830, 42453, 44838, 47170, 49820, 50196, 56604, 62745, 70755, 74730, 75294, 83660, 84906, 89676, 94340, 112095, 125490, 141510, 149460, 150588, 169812, 188235, 212265, 221699, 224190, 250980, 283020, 376470, 424530, 443398, 448380, 665097, 752940, 849060, 886796, 1108495, 1330194, 1995291, 2216990, 2660388, 3325485, 3990582, 4433980, 6650970, 7981164, 9976455, 13301940, 19952910, 39905820]

約数ペア:

[(1, 39905820), (2, 19952910), (3, 13301940), (4, 9976455), (5, 7981164), (6, 6650970), (9, 4433980), (10, 3990582), (12, 3325485), (15, 2660388), (18, 2216990), (20, 1995291), (30, 1330194), (36, 1108495), (45, 886796), (47, 849060), (53, 752940), (60, 665097), (89, 448380), (90, 443398), (94, 424530), (106, 376470), (141, 283020), (159, 250980), (178, 224190), (180, 221699), (188, 212265), (212, 188235), (235, 169812), (265, 150588), (267, 149460), (282, 141510), (318, 125490), (356, 112095), (423, 94340), (445, 89676), (470, 84906), (477, 83660), (530, 75294), (534, 74730), (564, 70755), (636, 62745), (705, 56604), (795, 50196), (801, 49820), (846, 47170), (890, 44838), (940, 42453), (954, 41830), (1060, 37647), (1068, 37365), (1335, 29892), (1410, 28302), (1590, 25098), (1602, 24910), (1692, 23585), (1780, 22419), (1908, 20915), (2115, 18868), (2385, 16732), (2491, 16020), (2670, 14946), (2820, 14151), (3180, 12549), (3204, 12455), (4005, 9964), (4183, 9540), (4230, 9434), (4717, 8460), (4770, 8366), (4982, 8010), (5340, 7473)]