215185880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1907}}^1$

素因数の和:1969

約数の個数: 128

約数和(自身を含む): 615444480

約数和(自身を除く): 400258600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 806, 868, 910, 1085, 1240, 1612, 1736, 1820, 1907, 2015, 2170, 2821, 3224, 3640, 3814, 4030, 4340, 5642, 7628, 8060, 8680, 9535, 11284, 13349, 14105, 15256, 16120, 19070, 22568, 24791, 26698, 28210, 38140, 49582, 53396, 56420, 59117, 66745, 76280, 99164, 106792, 112840, 118234, 123955, 133490, 173537, 198328, 236468, 247910, 266980, 295585, 347074, 413819, 472936, 495820, 533960, 591170, 694148, 768521, 827638, 867685, 991640, 1182340, 1388296, 1537042, 1655276, 1735370, 2069095, 2364680, 3074084, 3310552, 3470740, 3842605, 4138190, 5379647, 6148168, 6941480, 7685210, 8276380, 10759294, 15370420, 16552760, 21518588, 26898235, 30740840, 43037176, 53796470, 107592940, 215185880]

約数ペア:

[(1, 215185880), (2, 107592940), (4, 53796470), (5, 43037176), (7, 30740840), (8, 26898235), (10, 21518588), (13, 16552760), (14, 15370420), (20, 10759294), (26, 8276380), (28, 7685210), (31, 6941480), (35, 6148168), (40, 5379647), (52, 4138190), (56, 3842605), (62, 3470740), (65, 3310552), (70, 3074084), (91, 2364680), (104, 2069095), (124, 1735370), (130, 1655276), (140, 1537042), (155, 1388296), (182, 1182340), (217, 991640), (248, 867685), (260, 827638), (280, 768521), (310, 694148), (364, 591170), (403, 533960), (434, 495820), (455, 472936), (520, 413819), (620, 347074), (728, 295585), (806, 266980), (868, 247910), (910, 236468), (1085, 198328), (1240, 173537), (1612, 133490), (1736, 123955), (1820, 118234), (1907, 112840), (2015, 106792), (2170, 99164), (2821, 76280), (3224, 66745), (3640, 59117), (3814, 56420), (4030, 53396), (4340, 49582), (5642, 38140), (7628, 28210), (8060, 26698), (8680, 24791), (9535, 22568), (11284, 19070), (13349, 16120), (14105, 15256)]