73978400

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:227

約数の個数: 144

約数和(自身を含む): 197487360

約数和(自身を除く): 123508960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 32, 38, 40, 50, 62, 76, 80, 95, 100, 124, 152, 155, 157, 160, 190, 200, 248, 304, 310, 314, 380, 400, 475, 496, 589, 608, 620, 628, 760, 775, 785, 800, 950, 992, 1178, 1240, 1256, 1520, 1550, 1570, 1900, 2356, 2480, 2512, 2945, 2983, 3040, 3100, 3140, 3800, 3925, 4712, 4867, 4960, 5024, 5890, 5966, 6200, 6280, 7600, 7850, 9424, 9734, 11780, 11932, 12400, 12560, 14725, 14915, 15200, 15700, 18848, 19468, 23560, 23864, 24335, 24800, 25120, 29450, 29830, 31400, 38936, 47120, 47728, 48670, 58900, 59660, 62800, 74575, 77872, 92473, 94240, 95456, 97340, 117800, 119320, 121675, 125600, 149150, 155744, 184946, 194680, 235600, 238640, 243350, 298300, 369892, 389360, 462365, 471200, 477280, 486700, 596600, 739784, 778720, 924730, 973400, 1193200, 1479568, 1849460, 1946800, 2311825, 2386400, 2959136, 3698920, 3893600, 4623650, 7397840, 9247300, 14795680, 18494600, 36989200, 73978400]

約数ペア:

[(1, 73978400), (2, 36989200), (4, 18494600), (5, 14795680), (8, 9247300), (10, 7397840), (16, 4623650), (19, 3893600), (20, 3698920), (25, 2959136), (31, 2386400), (32, 2311825), (38, 1946800), (40, 1849460), (50, 1479568), (62, 1193200), (76, 973400), (80, 924730), (95, 778720), (100, 739784), (124, 596600), (152, 486700), (155, 477280), (157, 471200), (160, 462365), (190, 389360), (200, 369892), (248, 298300), (304, 243350), (310, 238640), (314, 235600), (380, 194680), (400, 184946), (475, 155744), (496, 149150), (589, 125600), (608, 121675), (620, 119320), (628, 117800), (760, 97340), (775, 95456), (785, 94240), (800, 92473), (950, 77872), (992, 74575), (1178, 62800), (1240, 59660), (1256, 58900), (1520, 48670), (1550, 47728), (1570, 47120), (1900, 38936), (2356, 31400), (2480, 29830), (2512, 29450), (2945, 25120), (2983, 24800), (3040, 24335), (3100, 23864), (3140, 23560), (3800, 19468), (3925, 18848), (4712, 15700), (4867, 15200), (4960, 14915), (5024, 14725), (5890, 12560), (5966, 12400), (6200, 11932), (6280, 11780), (7600, 9734), (7850, 9424)]