1557552220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{307}}^1$

素因数の和:528

約数の個数: 144

約数和(自身を含む): 3964004352

約数和(自身を除く): 2406452132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 167, 196, 217, 245, 307, 310, 334, 434, 490, 614, 620, 668, 835, 868, 980, 1085, 1169, 1228, 1519, 1535, 1670, 2149, 2170, 2338, 3038, 3070, 3340, 4298, 4340, 4676, 5177, 5845, 6076, 6140, 7595, 8183, 8596, 9517, 10354, 10745, 11690, 15043, 15190, 16366, 19034, 20708, 21490, 23380, 25885, 30086, 30380, 32732, 36239, 38068, 40915, 42980, 47585, 51269, 51770, 60172, 66619, 72478, 75215, 81830, 95170, 102538, 103540, 133238, 144956, 150430, 163660, 181195, 190340, 205076, 253673, 256345, 266476, 300860, 333095, 358883, 362390, 466333, 507346, 512690, 666190, 717766, 724780, 932666, 1014692, 1025380, 1268365, 1332380, 1435532, 1589339, 1794415, 1865332, 2331665, 2512181, 2536730, 3178678, 3588830, 4663330, 5024362, 5073460, 6357356, 7177660, 7946695, 9326660, 10048724, 11125373, 12560905, 15893390, 22250746, 25121810, 31786780, 44501492, 50243620, 55626865, 77877611, 111253730, 155755222, 222507460, 311510444, 389388055, 778776110, 1557552220]

約数ペア:

[(1, 1557552220), (2, 778776110), (4, 389388055), (5, 311510444), (7, 222507460), (10, 155755222), (14, 111253730), (20, 77877611), (28, 55626865), (31, 50243620), (35, 44501492), (49, 31786780), (62, 25121810), (70, 22250746), (98, 15893390), (124, 12560905), (140, 11125373), (155, 10048724), (167, 9326660), (196, 7946695), (217, 7177660), (245, 6357356), (307, 5073460), (310, 5024362), (334, 4663330), (434, 3588830), (490, 3178678), (614, 2536730), (620, 2512181), (668, 2331665), (835, 1865332), (868, 1794415), (980, 1589339), (1085, 1435532), (1169, 1332380), (1228, 1268365), (1519, 1025380), (1535, 1014692), (1670, 932666), (2149, 724780), (2170, 717766), (2338, 666190), (3038, 512690), (3070, 507346), (3340, 466333), (4298, 362390), (4340, 358883), (4676, 333095), (5177, 300860), (5845, 266476), (6076, 256345), (6140, 253673), (7595, 205076), (8183, 190340), (8596, 181195), (9517, 163660), (10354, 150430), (10745, 144956), (11690, 133238), (15043, 103540), (15190, 102538), (16366, 95170), (19034, 81830), (20708, 75215), (21490, 72478), (23380, 66619), (25885, 60172), (30086, 51770), (30380, 51269), (32732, 47585), (36239, 42980), (38068, 40915)]