19658340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:330

約数の個数: 144

約数和(自身を含む): 66533376

約数和(自身を除く): 46875036

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 31, 36, 39, 45, 52, 60, 62, 65, 78, 90, 93, 117, 124, 130, 155, 156, 180, 186, 195, 234, 260, 271, 279, 310, 372, 390, 403, 465, 468, 542, 558, 585, 620, 780, 806, 813, 930, 1084, 1116, 1170, 1209, 1355, 1395, 1612, 1626, 1860, 2015, 2340, 2418, 2439, 2710, 2790, 3252, 3523, 3627, 4030, 4065, 4836, 4878, 5420, 5580, 6045, 7046, 7254, 8060, 8130, 8401, 9756, 10569, 12090, 12195, 14092, 14508, 16260, 16802, 17615, 18135, 21138, 24180, 24390, 25203, 31707, 33604, 35230, 36270, 42005, 42276, 48780, 50406, 52845, 63414, 70460, 72540, 75609, 84010, 100812, 105690, 109213, 126015, 126828, 151218, 158535, 168020, 211380, 218426, 252030, 302436, 317070, 327639, 378045, 436852, 504060, 546065, 634140, 655278, 756090, 982917, 1092130, 1310556, 1512180, 1638195, 1965834, 2184260, 3276390, 3931668, 4914585, 6552780, 9829170, 19658340]

約数ペア:

[(1, 19658340), (2, 9829170), (3, 6552780), (4, 4914585), (5, 3931668), (6, 3276390), (9, 2184260), (10, 1965834), (12, 1638195), (13, 1512180), (15, 1310556), (18, 1092130), (20, 982917), (26, 756090), (30, 655278), (31, 634140), (36, 546065), (39, 504060), (45, 436852), (52, 378045), (60, 327639), (62, 317070), (65, 302436), (78, 252030), (90, 218426), (93, 211380), (117, 168020), (124, 158535), (130, 151218), (155, 126828), (156, 126015), (180, 109213), (186, 105690), (195, 100812), (234, 84010), (260, 75609), (271, 72540), (279, 70460), (310, 63414), (372, 52845), (390, 50406), (403, 48780), (465, 42276), (468, 42005), (542, 36270), (558, 35230), (585, 33604), (620, 31707), (780, 25203), (806, 24390), (813, 24180), (930, 21138), (1084, 18135), (1116, 17615), (1170, 16802), (1209, 16260), (1355, 14508), (1395, 14092), (1612, 12195), (1626, 12090), (1860, 10569), (2015, 9756), (2340, 8401), (2418, 8130), (2439, 8060), (2710, 7254), (2790, 7046), (3252, 6045), (3523, 5580), (3627, 5420), (4030, 4878), (4065, 4836)]