28994420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 76204800

約数和(自身を除く): 47210380

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 89, 91, 130, 140, 178, 179, 182, 260, 356, 358, 364, 445, 455, 623, 716, 890, 895, 910, 1157, 1246, 1253, 1780, 1790, 1820, 2314, 2327, 2492, 2506, 3115, 3580, 4628, 4654, 5012, 5785, 6230, 6265, 8099, 9308, 11570, 11635, 12460, 12530, 15931, 16198, 16289, 23140, 23270, 25060, 31862, 32396, 32578, 40495, 46540, 63724, 65156, 79655, 80990, 81445, 111517, 159310, 161980, 162890, 207103, 223034, 318620, 325780, 414206, 446068, 557585, 828412, 1035515, 1115170, 1449721, 2071030, 2230340, 2899442, 4142060, 5798884, 7248605, 14497210, 28994420]

約数ペア:

[(1, 28994420), (2, 14497210), (4, 7248605), (5, 5798884), (7, 4142060), (10, 2899442), (13, 2230340), (14, 2071030), (20, 1449721), (26, 1115170), (28, 1035515), (35, 828412), (52, 557585), (65, 446068), (70, 414206), (89, 325780), (91, 318620), (130, 223034), (140, 207103), (178, 162890), (179, 161980), (182, 159310), (260, 111517), (356, 81445), (358, 80990), (364, 79655), (445, 65156), (455, 63724), (623, 46540), (716, 40495), (890, 32578), (895, 32396), (910, 31862), (1157, 25060), (1246, 23270), (1253, 23140), (1780, 16289), (1790, 16198), (1820, 15931), (2314, 12530), (2327, 12460), (2492, 11635), (2506, 11570), (3115, 9308), (3580, 8099), (4628, 6265), (4654, 6230), (5012, 5785)]