15997240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 45158400

約数和(自身を除く): 29161160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 95, 97, 124, 133, 140, 152, 155, 190, 194, 217, 248, 266, 280, 310, 380, 388, 434, 485, 532, 589, 620, 665, 679, 760, 776, 868, 970, 1064, 1085, 1178, 1240, 1330, 1358, 1736, 1843, 1940, 2170, 2356, 2660, 2716, 2945, 3007, 3395, 3686, 3880, 4123, 4340, 4712, 5320, 5432, 5890, 6014, 6790, 7372, 8246, 8680, 9215, 11780, 12028, 12901, 13580, 14744, 15035, 16492, 18430, 20615, 21049, 23560, 24056, 25802, 27160, 30070, 32984, 36860, 41230, 42098, 51604, 57133, 60140, 64505, 73720, 82460, 84196, 103208, 105245, 114266, 120280, 129010, 164920, 168392, 210490, 228532, 258020, 285665, 399931, 420980, 457064, 516040, 571330, 799862, 841960, 1142660, 1599724, 1999655, 2285320, 3199448, 3999310, 7998620, 15997240]

約数ペア:

[(1, 15997240), (2, 7998620), (4, 3999310), (5, 3199448), (7, 2285320), (8, 1999655), (10, 1599724), (14, 1142660), (19, 841960), (20, 799862), (28, 571330), (31, 516040), (35, 457064), (38, 420980), (40, 399931), (56, 285665), (62, 258020), (70, 228532), (76, 210490), (95, 168392), (97, 164920), (124, 129010), (133, 120280), (140, 114266), (152, 105245), (155, 103208), (190, 84196), (194, 82460), (217, 73720), (248, 64505), (266, 60140), (280, 57133), (310, 51604), (380, 42098), (388, 41230), (434, 36860), (485, 32984), (532, 30070), (589, 27160), (620, 25802), (665, 24056), (679, 23560), (760, 21049), (776, 20615), (868, 18430), (970, 16492), (1064, 15035), (1085, 14744), (1178, 13580), (1240, 12901), (1330, 12028), (1358, 11780), (1736, 9215), (1843, 8680), (1940, 8246), (2170, 7372), (2356, 6790), (2660, 6014), (2716, 5890), (2945, 5432), (3007, 5320), (3395, 4712), (3686, 4340), (3880, 4123)]