61721940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{659}}^1$

素因数の和:901

約数の個数: 96

約数和(自身を含む): 198696960

約数和(自身を除く): 136975020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 223, 420, 446, 659, 669, 892, 1115, 1318, 1338, 1561, 1977, 2230, 2636, 2676, 3122, 3295, 3345, 3954, 4460, 4613, 4683, 6244, 6590, 6690, 7805, 7908, 9226, 9366, 9885, 13180, 13380, 13839, 15610, 18452, 18732, 19770, 23065, 23415, 27678, 31220, 39540, 46130, 46830, 55356, 69195, 92260, 93660, 138390, 146957, 276780, 293914, 440871, 587828, 734785, 881742, 1028699, 1469570, 1763484, 2057398, 2204355, 2939140, 3086097, 4114796, 4408710, 5143495, 6172194, 8817420, 10286990, 12344388, 15430485, 20573980, 30860970, 61721940]

約数ペア:

[(1, 61721940), (2, 30860970), (3, 20573980), (4, 15430485), (5, 12344388), (6, 10286990), (7, 8817420), (10, 6172194), (12, 5143495), (14, 4408710), (15, 4114796), (20, 3086097), (21, 2939140), (28, 2204355), (30, 2057398), (35, 1763484), (42, 1469570), (60, 1028699), (70, 881742), (84, 734785), (105, 587828), (140, 440871), (210, 293914), (223, 276780), (420, 146957), (446, 138390), (659, 93660), (669, 92260), (892, 69195), (1115, 55356), (1318, 46830), (1338, 46130), (1561, 39540), (1977, 31220), (2230, 27678), (2636, 23415), (2676, 23065), (3122, 19770), (3295, 18732), (3345, 18452), (3954, 15610), (4460, 13839), (4613, 13380), (4683, 13180), (6244, 9885), (6590, 9366), (6690, 9226), (7805, 7908)]