28420260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{149}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 92836800

約数和(自身を除く): 64416540

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 60, 66, 68, 85, 102, 110, 132, 149, 165, 170, 187, 204, 220, 255, 289, 298, 330, 340, 374, 447, 510, 561, 578, 596, 660, 745, 748, 867, 894, 935, 1020, 1122, 1156, 1445, 1490, 1639, 1734, 1788, 1870, 2235, 2244, 2533, 2805, 2890, 2980, 3179, 3278, 3468, 3740, 4335, 4470, 4917, 5066, 5610, 5780, 6358, 6556, 7599, 8195, 8670, 8940, 9537, 9834, 10132, 11220, 12665, 12716, 15198, 15895, 16390, 17340, 19074, 19668, 24585, 25330, 27863, 30396, 31790, 32780, 37995, 38148, 43061, 47685, 49170, 50660, 55726, 63580, 75990, 83589, 86122, 95370, 98340, 111452, 129183, 139315, 151980, 167178, 172244, 190740, 215305, 258366, 278630, 334356, 417945, 430610, 473671, 516732, 557260, 645915, 835890, 861220, 947342, 1291830, 1421013, 1671780, 1894684, 2368355, 2583660, 2842026, 4736710, 5684052, 7105065, 9473420, 14210130, 28420260]

約数ペア:

[(1, 28420260), (2, 14210130), (3, 9473420), (4, 7105065), (5, 5684052), (6, 4736710), (10, 2842026), (11, 2583660), (12, 2368355), (15, 1894684), (17, 1671780), (20, 1421013), (22, 1291830), (30, 947342), (33, 861220), (34, 835890), (44, 645915), (51, 557260), (55, 516732), (60, 473671), (66, 430610), (68, 417945), (85, 334356), (102, 278630), (110, 258366), (132, 215305), (149, 190740), (165, 172244), (170, 167178), (187, 151980), (204, 139315), (220, 129183), (255, 111452), (289, 98340), (298, 95370), (330, 86122), (340, 83589), (374, 75990), (447, 63580), (510, 55726), (561, 50660), (578, 49170), (596, 47685), (660, 43061), (745, 38148), (748, 37995), (867, 32780), (894, 31790), (935, 30396), (1020, 27863), (1122, 25330), (1156, 24585), (1445, 19668), (1490, 19074), (1639, 17340), (1734, 16390), (1788, 15895), (1870, 15198), (2235, 12716), (2244, 12665), (2533, 11220), (2805, 10132), (2890, 9834), (2980, 9537), (3179, 8940), (3278, 8670), (3468, 8195), (3740, 7599), (4335, 6556), (4470, 6358), (4917, 5780), (5066, 5610)]