20243940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:341

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 40719900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 89, 102, 170, 178, 204, 223, 255, 267, 340, 356, 445, 446, 510, 534, 669, 890, 892, 1020, 1068, 1115, 1335, 1338, 1513, 1780, 2230, 2670, 2676, 3026, 3345, 3791, 4460, 4539, 5340, 6052, 6690, 7565, 7582, 9078, 11373, 13380, 15130, 15164, 18156, 18955, 19847, 22695, 22746, 30260, 37910, 39694, 45390, 45492, 56865, 59541, 75820, 79388, 90780, 99235, 113730, 119082, 198470, 227460, 238164, 297705, 337399, 396940, 595410, 674798, 1012197, 1190820, 1349596, 1686995, 2024394, 3373990, 4048788, 5060985, 6747980, 10121970, 20243940]

約数ペア:

[(1, 20243940), (2, 10121970), (3, 6747980), (4, 5060985), (5, 4048788), (6, 3373990), (10, 2024394), (12, 1686995), (15, 1349596), (17, 1190820), (20, 1012197), (30, 674798), (34, 595410), (51, 396940), (60, 337399), (68, 297705), (85, 238164), (89, 227460), (102, 198470), (170, 119082), (178, 113730), (204, 99235), (223, 90780), (255, 79388), (267, 75820), (340, 59541), (356, 56865), (445, 45492), (446, 45390), (510, 39694), (534, 37910), (669, 30260), (890, 22746), (892, 22695), (1020, 19847), (1068, 18955), (1115, 18156), (1335, 15164), (1338, 15130), (1513, 13380), (1780, 11373), (2230, 9078), (2670, 7582), (2676, 7565), (3026, 6690), (3345, 6052), (3791, 5340), (4460, 4539)]