291418960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:549

約数の個数: 160

約数和(自身を含む): 830304000

約数和(自身を除く): 538885040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 61, 70, 76, 80, 95, 112, 122, 133, 140, 152, 190, 244, 266, 280, 304, 305, 380, 427, 449, 488, 532, 560, 610, 665, 760, 854, 898, 976, 1064, 1159, 1220, 1330, 1520, 1708, 1796, 2128, 2135, 2245, 2318, 2440, 2660, 3143, 3416, 3592, 4270, 4490, 4636, 4880, 5320, 5795, 6286, 6832, 7184, 8113, 8531, 8540, 8980, 9272, 10640, 11590, 12572, 15715, 16226, 17062, 17080, 17960, 18544, 23180, 25144, 27389, 31430, 32452, 34124, 34160, 35920, 40565, 42655, 46360, 50288, 54778, 59717, 62860, 64904, 68248, 81130, 85310, 92720, 109556, 119434, 125720, 129808, 136496, 136945, 162260, 170620, 191723, 219112, 238868, 251440, 273890, 298585, 324520, 341240, 383446, 438224, 477736, 520391, 547780, 597170, 649040, 682480, 766892, 955472, 958615, 1040782, 1095560, 1194340, 1533784, 1917230, 2081564, 2191120, 2388680, 2601955, 3067568, 3642737, 3834460, 4163128, 4777360, 5203910, 7285474, 7668920, 8326256, 10407820, 14570948, 15337840, 18213685, 20815640, 29141896, 36427370, 41631280, 58283792, 72854740, 145709480, 291418960]

約数ペア:

[(1, 291418960), (2, 145709480), (4, 72854740), (5, 58283792), (7, 41631280), (8, 36427370), (10, 29141896), (14, 20815640), (16, 18213685), (19, 15337840), (20, 14570948), (28, 10407820), (35, 8326256), (38, 7668920), (40, 7285474), (56, 5203910), (61, 4777360), (70, 4163128), (76, 3834460), (80, 3642737), (95, 3067568), (112, 2601955), (122, 2388680), (133, 2191120), (140, 2081564), (152, 1917230), (190, 1533784), (244, 1194340), (266, 1095560), (280, 1040782), (304, 958615), (305, 955472), (380, 766892), (427, 682480), (449, 649040), (488, 597170), (532, 547780), (560, 520391), (610, 477736), (665, 438224), (760, 383446), (854, 341240), (898, 324520), (976, 298585), (1064, 273890), (1159, 251440), (1220, 238868), (1330, 219112), (1520, 191723), (1708, 170620), (1796, 162260), (2128, 136945), (2135, 136496), (2245, 129808), (2318, 125720), (2440, 119434), (2660, 109556), (3143, 92720), (3416, 85310), (3592, 81130), (4270, 68248), (4490, 64904), (4636, 62860), (4880, 59717), (5320, 54778), (5795, 50288), (6286, 46360), (6832, 42655), (7184, 40565), (8113, 35920), (8531, 34160), (8540, 34124), (8980, 32452), (9272, 31430), (10640, 27389), (11590, 25144), (12572, 23180), (15715, 18544), (16226, 17960), (17062, 17080)]