72971990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 128

約数和(自身を含む): 176359680

約数和(自身を除く): 103387690

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 53, 65, 70, 85, 89, 91, 106, 119, 130, 170, 178, 182, 221, 238, 265, 371, 442, 445, 455, 530, 595, 623, 689, 742, 890, 901, 910, 1105, 1157, 1190, 1246, 1378, 1513, 1547, 1802, 1855, 2210, 2314, 3026, 3094, 3115, 3445, 3710, 4505, 4717, 4823, 5785, 6230, 6307, 6890, 7565, 7735, 8099, 9010, 9434, 9646, 10591, 11570, 11713, 12614, 15130, 15470, 16198, 19669, 21182, 23426, 23585, 24115, 31535, 33019, 39338, 40495, 47170, 48230, 52955, 58565, 61321, 63070, 66038, 80189, 80990, 81991, 98345, 105910, 117130, 122642, 137683, 160378, 163982, 165095, 196690, 275366, 306605, 330190, 400945, 409955, 429247, 561323, 613210, 688415, 801890, 819910, 858494, 1042457, 1122646, 1376830, 2084914, 2146235, 2806615, 4292470, 5212285, 5613230, 7297199, 10424570, 14594398, 36485995, 72971990]

約数ペア:

[(1, 72971990), (2, 36485995), (5, 14594398), (7, 10424570), (10, 7297199), (13, 5613230), (14, 5212285), (17, 4292470), (26, 2806615), (34, 2146235), (35, 2084914), (53, 1376830), (65, 1122646), (70, 1042457), (85, 858494), (89, 819910), (91, 801890), (106, 688415), (119, 613210), (130, 561323), (170, 429247), (178, 409955), (182, 400945), (221, 330190), (238, 306605), (265, 275366), (371, 196690), (442, 165095), (445, 163982), (455, 160378), (530, 137683), (595, 122642), (623, 117130), (689, 105910), (742, 98345), (890, 81991), (901, 80990), (910, 80189), (1105, 66038), (1157, 63070), (1190, 61321), (1246, 58565), (1378, 52955), (1513, 48230), (1547, 47170), (1802, 40495), (1855, 39338), (2210, 33019), (2314, 31535), (3026, 24115), (3094, 23585), (3115, 23426), (3445, 21182), (3710, 19669), (4505, 16198), (4717, 15470), (4823, 15130), (5785, 12614), (6230, 11713), (6307, 11570), (6890, 10591), (7565, 9646), (7735, 9434), (8099, 9010)]