19581380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 54295920

約数和(自身を除く): 34714540

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 49, 52, 53, 58, 65, 70, 91, 98, 106, 116, 130, 140, 145, 182, 196, 203, 212, 245, 260, 265, 290, 364, 371, 377, 406, 455, 490, 530, 580, 637, 689, 742, 754, 812, 910, 980, 1015, 1060, 1274, 1378, 1421, 1484, 1508, 1537, 1820, 1855, 1885, 2030, 2548, 2597, 2639, 2756, 2842, 3074, 3185, 3445, 3710, 3770, 4060, 4823, 5194, 5278, 5684, 6148, 6370, 6890, 7105, 7420, 7540, 7685, 9646, 10388, 10556, 10759, 12740, 12985, 13195, 13780, 14210, 15370, 18473, 19292, 19981, 21518, 24115, 25970, 26390, 28420, 30740, 33761, 36946, 39962, 43036, 48230, 51940, 52780, 53795, 67522, 73892, 75313, 79924, 92365, 96460, 99905, 107590, 135044, 139867, 150626, 168805, 184730, 199810, 215180, 279734, 301252, 337610, 369460, 376565, 399620, 559468, 675220, 699335, 753130, 979069, 1398670, 1506260, 1958138, 2797340, 3916276, 4895345, 9790690, 19581380]

約数ペア:

[(1, 19581380), (2, 9790690), (4, 4895345), (5, 3916276), (7, 2797340), (10, 1958138), (13, 1506260), (14, 1398670), (20, 979069), (26, 753130), (28, 699335), (29, 675220), (35, 559468), (49, 399620), (52, 376565), (53, 369460), (58, 337610), (65, 301252), (70, 279734), (91, 215180), (98, 199810), (106, 184730), (116, 168805), (130, 150626), (140, 139867), (145, 135044), (182, 107590), (196, 99905), (203, 96460), (212, 92365), (245, 79924), (260, 75313), (265, 73892), (290, 67522), (364, 53795), (371, 52780), (377, 51940), (406, 48230), (455, 43036), (490, 39962), (530, 36946), (580, 33761), (637, 30740), (689, 28420), (742, 26390), (754, 25970), (812, 24115), (910, 21518), (980, 19981), (1015, 19292), (1060, 18473), (1274, 15370), (1378, 14210), (1421, 13780), (1484, 13195), (1508, 12985), (1537, 12740), (1820, 10759), (1855, 10556), (1885, 10388), (2030, 9646), (2548, 7685), (2597, 7540), (2639, 7420), (2756, 7105), (2842, 6890), (3074, 6370), (3185, 6148), (3445, 5684), (3710, 5278), (3770, 5194), (4060, 4823)]