778644016

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:498

約数の個数: 80

約数和(自身を含む): 1629856000

約数和(自身を除く): 851211984

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 199, 211, 244, 304, 398, 422, 488, 796, 844, 976, 1159, 1592, 1688, 2318, 3184, 3376, 3781, 4009, 4636, 7562, 8018, 9272, 12139, 12871, 15124, 16036, 18544, 24278, 25742, 30248, 32072, 41989, 48556, 51484, 60496, 64144, 83978, 97112, 102968, 167956, 194224, 205936, 230641, 244549, 335912, 461282, 489098, 671824, 797791, 922564, 978196, 1595582, 1845128, 1956392, 2561329, 3191164, 3690256, 3912784, 5122658, 6382328, 10245316, 12764656, 20490632, 40981264, 48665251, 97330502, 194661004, 389322008, 778644016]

約数ペア:

[(1, 778644016), (2, 389322008), (4, 194661004), (8, 97330502), (16, 48665251), (19, 40981264), (38, 20490632), (61, 12764656), (76, 10245316), (122, 6382328), (152, 5122658), (199, 3912784), (211, 3690256), (244, 3191164), (304, 2561329), (398, 1956392), (422, 1845128), (488, 1595582), (796, 978196), (844, 922564), (976, 797791), (1159, 671824), (1592, 489098), (1688, 461282), (2318, 335912), (3184, 244549), (3376, 230641), (3781, 205936), (4009, 194224), (4636, 167956), (7562, 102968), (8018, 97112), (9272, 83978), (12139, 64144), (12871, 60496), (15124, 51484), (16036, 48556), (18544, 41989), (24278, 32072), (25742, 30248)]