31409880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:293

約数の個数: 128

約数和(自身を含む): 101476800

約数和(自身を除く): 70066920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 89, 102, 120, 136, 170, 173, 178, 204, 255, 267, 340, 346, 356, 408, 445, 510, 519, 534, 680, 692, 712, 865, 890, 1020, 1038, 1068, 1335, 1384, 1513, 1730, 1780, 2040, 2076, 2136, 2595, 2670, 2941, 3026, 3460, 3560, 4152, 4539, 5190, 5340, 5882, 6052, 6920, 7565, 8823, 9078, 10380, 10680, 11764, 12104, 14705, 15130, 15397, 17646, 18156, 20760, 22695, 23528, 29410, 30260, 30794, 35292, 36312, 44115, 45390, 46191, 58820, 60520, 61588, 70584, 76985, 88230, 90780, 92382, 117640, 123176, 153970, 176460, 181560, 184764, 230955, 261749, 307940, 352920, 369528, 461910, 523498, 615880, 785247, 923820, 1046996, 1308745, 1570494, 1847640, 2093992, 2617490, 3140988, 3926235, 5234980, 6281976, 7852470, 10469960, 15704940, 31409880]

約数ペア:

[(1, 31409880), (2, 15704940), (3, 10469960), (4, 7852470), (5, 6281976), (6, 5234980), (8, 3926235), (10, 3140988), (12, 2617490), (15, 2093992), (17, 1847640), (20, 1570494), (24, 1308745), (30, 1046996), (34, 923820), (40, 785247), (51, 615880), (60, 523498), (68, 461910), (85, 369528), (89, 352920), (102, 307940), (120, 261749), (136, 230955), (170, 184764), (173, 181560), (178, 176460), (204, 153970), (255, 123176), (267, 117640), (340, 92382), (346, 90780), (356, 88230), (408, 76985), (445, 70584), (510, 61588), (519, 60520), (534, 58820), (680, 46191), (692, 45390), (712, 44115), (865, 36312), (890, 35292), (1020, 30794), (1038, 30260), (1068, 29410), (1335, 23528), (1384, 22695), (1513, 20760), (1730, 18156), (1780, 17646), (2040, 15397), (2076, 15130), (2136, 14705), (2595, 12104), (2670, 11764), (2941, 10680), (3026, 10380), (3460, 9078), (3560, 8823), (4152, 7565), (4539, 6920), (5190, 6052), (5340, 5882)]