1388890090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:320

約数の個数: 128

約数和(自身を含む): 3053376000

約数和(自身を除く): 1664485910

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 59, 61, 70, 74, 118, 122, 149, 185, 259, 295, 298, 305, 370, 413, 427, 518, 590, 610, 745, 826, 854, 1043, 1295, 1490, 2065, 2086, 2135, 2183, 2257, 2590, 3599, 4130, 4270, 4366, 4514, 5215, 5513, 7198, 8791, 9089, 10430, 10915, 11026, 11285, 15281, 15799, 17582, 17995, 18178, 21830, 22570, 25193, 27565, 30562, 31598, 35990, 38591, 43955, 45445, 50386, 55130, 61537, 63623, 76405, 77182, 78995, 87910, 90890, 123074, 125965, 127246, 133163, 152810, 157990, 192955, 251930, 266326, 307685, 318115, 325267, 336293, 385910, 536251, 615370, 636230, 650534, 665815, 672586, 932141, 1072502, 1331630, 1626335, 1681465, 1864282, 2276869, 2354051, 2681255, 3252670, 3362930, 3753757, 4553738, 4660705, 4708102, 5362510, 7507514, 9321410, 11384345, 11770255, 18768785, 19841287, 22768690, 23540510, 37537570, 39682574, 99206435, 138889009, 198412870, 277778018, 694445045, 1388890090]

約数ペア:

[(1, 1388890090), (2, 694445045), (5, 277778018), (7, 198412870), (10, 138889009), (14, 99206435), (35, 39682574), (37, 37537570), (59, 23540510), (61, 22768690), (70, 19841287), (74, 18768785), (118, 11770255), (122, 11384345), (149, 9321410), (185, 7507514), (259, 5362510), (295, 4708102), (298, 4660705), (305, 4553738), (370, 3753757), (413, 3362930), (427, 3252670), (518, 2681255), (590, 2354051), (610, 2276869), (745, 1864282), (826, 1681465), (854, 1626335), (1043, 1331630), (1295, 1072502), (1490, 932141), (2065, 672586), (2086, 665815), (2135, 650534), (2183, 636230), (2257, 615370), (2590, 536251), (3599, 385910), (4130, 336293), (4270, 325267), (4366, 318115), (4514, 307685), (5215, 266326), (5513, 251930), (7198, 192955), (8791, 157990), (9089, 152810), (10430, 133163), (10915, 127246), (11026, 125965), (11285, 123074), (15281, 90890), (15799, 87910), (17582, 78995), (17995, 77182), (18178, 76405), (21830, 63623), (22570, 61537), (25193, 55130), (27565, 50386), (30562, 45445), (31598, 43955), (35990, 38591)]