40625920

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1867}}^1$

素因数の和:1905

約数の個数: 72

約数和(自身を含む): 103091184

約数和(自身を除く): 62465264

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1360, 1867, 2176, 2720, 3734, 4352, 5440, 7468, 9335, 10880, 14936, 18670, 21760, 29872, 31739, 37340, 59744, 63478, 74680, 119488, 126956, 149360, 158695, 238976, 253912, 298720, 317390, 477952, 507824, 597440, 634780, 1015648, 1194880, 1269560, 2031296, 2389760, 2539120, 4062592, 5078240, 8125184, 10156480, 20312960, 40625920]

約数ペア:

[(1, 40625920), (2, 20312960), (4, 10156480), (5, 8125184), (8, 5078240), (10, 4062592), (16, 2539120), (17, 2389760), (20, 2031296), (32, 1269560), (34, 1194880), (40, 1015648), (64, 634780), (68, 597440), (80, 507824), (85, 477952), (128, 317390), (136, 298720), (160, 253912), (170, 238976), (256, 158695), (272, 149360), (320, 126956), (340, 119488), (544, 74680), (640, 63478), (680, 59744), (1088, 37340), (1280, 31739), (1360, 29872), (1867, 21760), (2176, 18670), (2720, 14936), (3734, 10880), (4352, 9335), (5440, 7468)]